40 lines
1.0 KiB
Plaintext
40 lines
1.0 KiB
Plaintext
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///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: DirectoryCache.sg
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//
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// Note:
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//
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// This cache is for recently closed directories. Opened
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// directories are not stored here. This cache exists because
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// opening a directory entails a non-trivial amount of work.
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//
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// Directories do not have a fixed size and this cache should
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// probably take this into account.
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namespace Microsoft.Singularity.Services.Fat.Fs
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{
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internal class DirectoryCache
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{
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FsObjectCache! cache;
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internal DirectoryCache(uint capacity)
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{
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this.cache = new FsObjectCache(capacity);
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}
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internal void Add(int firstCluster, Directory! directory)
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{
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cache.Add(firstCluster, directory);
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}
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internal Directory Get(int firstCluster)
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{
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return (Directory)cache.Get(firstCluster);
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}
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}
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}
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